<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    switch(8848){
      case 8848:
        console.log('我是8848');
        break
      case 1234:
        console.log('我是1234')
        break
      case 5678:
        console.log('我是5678')
        break
      default:
        console.log('啥也不是')
        break
    }
  </script>
</body>
</html>